TY - JOUR
T1 - Progress in development of coated conductors by TFA-MOD processing
AU - Izumi, Teruo
AU - Tokunaga, Yoshitaka
AU - Fuji, Hiroshi
AU - Teranishi, Ryo
AU - Matsuda, Junko
AU - Asada, Sigenobu
AU - Honjo, Tetsuji
AU - Shiohara, Yuh
AU - Muroga, Takemi
AU - Miyata, Seiki
AU - Watanabe, Tomonori
AU - Yamada, Yutaka
AU - Iijima, Yasuhiro
AU - Saitoh, Takashi
AU - Goto, Tomotaka
AU - Yoshinaka, Atsuya
AU - Yajima, Akimasa
N1 - Funding Information:
This work was supported by the New Energy and Industrial Technology Development Organization (NEDO) as Collaborative Research and Development of Fundamental Technologies for Superconductivity Applications.
PY - 2004/10
Y1 - 2004/10
N2 - The recent progress in R&D of coated conductors by TFA-MOD process was reviewed. For the several targets, such as high superconducting performance, high production rate, long tape etc., the steady progresses could be recognized. The high Jc and Ic values of 3.6 MA/cm2 and 291 A were achieved by using a highly aligned CeO2 cap on an IBAD-GZO layer and optimizing the conditions in the multi-coating process, respectively. For improving the production rate, the calcination time was extremely reduced by the development of the new combination of the starting materials. As the improvement of the production rate, the process for achieving high growth rate was investigated by controlling the atmosphere conditions in the high temperature heat treatment. It was found that both high humid partial pressure and low total pressure conditions were both effective to improve the growth rate and the three times higher growth rate with maintaining high Jc than that in the conventional conditions was confirmed. Additionally, a 0.25 m long tape with uniform Ic values over 200 A and the end-to-end I c value of 210 A was successfully fabricated with traveling in the furnace of the Reel-to-Reel system.
AB - The recent progress in R&D of coated conductors by TFA-MOD process was reviewed. For the several targets, such as high superconducting performance, high production rate, long tape etc., the steady progresses could be recognized. The high Jc and Ic values of 3.6 MA/cm2 and 291 A were achieved by using a highly aligned CeO2 cap on an IBAD-GZO layer and optimizing the conditions in the multi-coating process, respectively. For improving the production rate, the calcination time was extremely reduced by the development of the new combination of the starting materials. As the improvement of the production rate, the process for achieving high growth rate was investigated by controlling the atmosphere conditions in the high temperature heat treatment. It was found that both high humid partial pressure and low total pressure conditions were both effective to improve the growth rate and the three times higher growth rate with maintaining high Jc than that in the conventional conditions was confirmed. Additionally, a 0.25 m long tape with uniform Ic values over 200 A and the end-to-end I c value of 210 A was successfully fabricated with traveling in the furnace of the Reel-to-Reel system.
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U2 - 10.1016/j.physc.2003.12.095
DO - 10.1016/j.physc.2003.12.095
M3 - Article
AN - SCOPUS:4644241341
SN - 0921-4534
VL - 412-414
SP - 885
EP - 889
JO - Physica C: Superconductivity and its applications
JF - Physica C: Superconductivity and its applications
IS - SPEC. ISS.
ER -